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A253553 as a simple table

na(n)
11
21
32
42
53
64
75
84
93
106
117
128
1311
1410
159
168
1713
186
1917
2012
2115
2214
2319
2416
255
2622
279
2820
2923
3018
3129
3216
3321
3426
3525
3612
3731
3834
3933
4024
4137
4230
4341
4428
4527
4638
4743
4832
497
5010
5139
5244
5347
5418
5535
5640
5751
5846
5953
6036
6159
6258
6345
6432
6555
6642
6761
6852
6957
7050
7167
7224
7371
7462
7515
7668
7749
7866
7973
8048
8127

[1,1,2,2,3,4,5,4,3,6,7,8,11,10,9,8,13,6,17,12,15,
 14,19,16,5,22,9,20,23,18,29,16,21,26,25,12,31,34,
 33,24,37,30,41,28,27,38,43,32,7,10,39,44,47,18,35,
 40,51,46,53,36,59,58,45,32,55,42,61,52,57,50,67,
 24,71,62,15,68,49,66,73,48,27]